Mixed number 1 20/77 to percent

Mixed number 1 20/77 to percent How to convert the fraction 1 20/77 to a percentage value. Please, input values in this format: a b/c or b/c. Examples: Four tenths should be typed as 4/10. One and three-half should be typed as 1 3/2. For mixed numbers, please leave a space between the the integer and the fraction.